2.1 - Towards Roll and Sheet film for Still Photography Cellulose nitrate roll film replaced paper-base negatives (1884) in roll film cameras in 1889. Roll-film holders were developed for existing collodion wet and gelatin dry plate cameras. And there were numerous new amateur roll film cameras created for the new fast transparent film.
2 Answers. , Mechanical Engineer. all these colleges have almost the best mechanical engineering program: Massachusetts Institute of Technology , Stanford University, University of CaliforniaââBerkeley,University of Illinois, Cornell University , Princeton University , Carnegie Mellon University, Purdue University......
Students looking for the best schools to study chemical engineering have many options, including Arizona State University and the University of Florida. Both universities are large, public schools with undergraduate and graduate chemical engineering programs. Arizona State University is ranked as a top value school, and the University of Florida is ranked among the top 100 national universities.